// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: |
    White Space and Line Terminator between LeftHandSideExpression and "@="
    or between "@=" and AssignmentExpression are allowed
es5id: 11.13.2_A1_T4
esid: sec-assignment-operators
description: Checking by using eval, check operator is x += y
---*/

function Test() {
    var x;

    x = -1;
    assert.sameValue(x	+=	-1, -2, 'U+0009 (expression)');
    assert.sameValue(x, -2, 'U+0009 (side effect)');

    x = -1;
    assert.sameValue(x+=-1, -2, 'U+000B (expression)');
    assert.sameValue(x, -2, 'U+000B (side effect)');

    x = -1;
    assert.sameValue(x+=-1, -2, 'U+000C (expression)');
    assert.sameValue(x, -2, 'U+000C (side effect)');

    x = -1;
    assert.sameValue(x += -1, -2, 'U+0020 (expression)');
    assert.sameValue(x, -2, 'U+0020 (side effect)');

    x = -1;
    assert.sameValue(x += -1, -2, 'U+00A0 (expression)');
    assert.sameValue(x, -2, 'U+00A0 (side effect)');

    x = -1;
    assert.sameValue(x
    +=
    -1, -2, 'U+000A (expression)');
    assert.sameValue(x, -2, 'U+000A (side effect)');

    x = -1;
    assert.sameValue(x
    +=
    -1, -2, 'U+000D (expression)');
    assert.sameValue(x, -2, 'U+000D (side effect)');

    x = -1;
    assert.sameValue(x += -1, -2, 'U+2028 (expression)');
    assert.sameValue(x, -2, 'U+2028 (side effect)');

    x = -1;
    assert.sameValue(x += -1, -2, 'U+2029 (expression)');
    assert.sameValue(x, -2, 'U+2029 (side effect)');

    x = -1;
    assert.sameValue(x	  

      +=	  

      -1, -2, 'U+0009U+000BU+000CU+0020U+00A0U+000AU+000DU+2028U+2029 (expression)');
    assert.sameValue(x, -2, 'U+0009U+000BU+000CU+0020U+00A0U+000AU+000DU+2028U+2029 (side effect)');
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
